Land vehicles – Wheeled – Attachment
Patent
1987-06-25
1988-05-31
Weaver, Ross
Land vehicles
Wheeled
Attachment
180268, 280803, B60R 2234
Patent
active
047476168
ABSTRACT:
An electrical circuit includes a signal device such as a reminder lamp which is mounted on the instrument panel of the vehicle body remote from a door mounted seat belt retractor and a switch associated with the door latch. Electricity is conducted from the vehicle battery and the fuse block suitably mounted near the instrument panel, and then through the door jamb into the vehicle door where the door latch switch is connected in series with a solenoid associated with the seat belt retractor. Operation of the door handle or movement of the latch bolt to the unlatched position will close the switch and energize the solenoid. The circuit includes a relay having a coil interposed in the circuit remote from the door mounted solenoid and door latch switch. The relay coil is sensitive to a threshold of electrical current flowing therethrough at a level equal to or less than the current draw of the solenoid so that the coil closes a set of contacts to complete the electrical circuit energizing the reminder lamp. Accordingly, whenever the door handle is operated or the door is opened, the circuit is energized and the lamp is illuminated. In addition, should the solenoid remain energized after the door is closed, the reminder lamp remains illuminated to indicate the need for vehicle service.
REFERENCES:
patent: 3875556 (1975-04-01), Beroird
patent: 4597587 (1986-07-01), Yoshitsugu et al.
patent: 4598932 (1986-07-01), Comperou et al.
patent: 4603877 (1986-08-01), Espinoza et al.
General Motors Corporation
Leahy Charles E.
Weaver Ross
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